U74HC540G-D20-T [UTC]
OCTAL BUFFERS AND LINE DRIVERS;
| 型号： | U74HC540G-D20-T |
| 厂家： | 
Unisonic Technologies |
| 描述： | OCTAL BUFFERS AND LINE DRIVERS 驱动 |
| 文件： | 总5页 (文件大小：196K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
U74HC540
CMOS IC
OCTAL BUFFERS AND LINE
DRIVERS WITH 3-STATE
OUTPUTS
DESCRIPTION
The U74HC540 combines with octal buffers and line drivers with
inverting 3-state outputs. The 3-state output is controlled by output
enable inputs OE1 and OE2 , all eight outputs will be in
high-impedance when either of the 2 inputs is applied with high
voltage.
FEATURES
* Operation voltage range: 2V ~ 6V
* High-current 3-state outputs for bus driver
* Inverting outputs
ORDERING INFORMATION
Ordering Number
Package
Packing
Lead Free
Halogen Free
U74HC540L-D20-T
U74HC540L-P20-R
U74HC540G-D20-T
U74HC540G-P20-R
DIP-20
Tube
TSSOP-20
Tape Reel
U74HC540G-D20-T
(1)Packing Type
(2)Package Type
(3)Green Package
(1) T: Tube, R: Tape Reel
(2) D20: DIP-20, P20: TSSOP-20
(3) G: Halogen Free and Lead Free, L: Lead Free
MARKING
www.unisonic.com.tw
Copyright © 2016 Unisonic Technologies Co., Ltd
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U74HC540
CMOS IC
PIN CONFIGURATION
FUNCTION TABLE (each gate)
INPUT
OUTPUT
Y
A
OE1
OE2
L
L
L
H
X
X
H
L
L
L
H
X
X
H
Z
Z
LOGIC DIAGRAM (positive logic)
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U74HC540
CMOS IC
ABSOLUTE MAXIMUM RATINGS (unless otherwise specified)(Note 1)
PARAMETER
SYMBOL
VCC
RATINGS
-0.5~7
±20
UNIT
V
Supply Voltage
Input Clamp Current
Output Clamp Current
Output Current
IIK
mA
mA
mA
mA
°C
IOK
±20
IOUT
ICC
±35
VCC or GND Current
Storage Temperature
±70
TSTG
-65 ~ +150
Note 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Supply Voltage
SYMBOL
VCC
CONDITIONS
MIN
2
TYP
5
MAX
6
UNIT
V
V
V
Input Voltage
VIN
0
VCC
VCC
1000
500
400
85
Output Voltage
VOUT
0
VCC=2V
0
Input Transition Rise or Fall Rate
Operating Temperature
tR, tF
TA
ns
°C
VCC=4.5V
VCC=6V
0
0
-40
ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
1.5
TYP
MAX
UNIT
V
VCC=2V
VCC=4.5V
VCC=6V
VCC=2V
VCC=4.5V
VCC=6V
High-Level Input Voltage
Low-Level Input Voltage
VIH
3.15
4.2
0.5
1.35
1.8
VIL
V
V
VCC=2V, IOH=-20μA
VCC=4.5V, IOH=-20μA
VCC=6V, IOH=-20μA
VCC=4.5V, IOH=-6mA
1.9
4.4
1.998
4.499
5.999
4.3
High-Level Output Voltage
Low-Level Output Voltage
VOH
5.9
3.98
5.48
V
CC=6V, IOH=-7.8mA
5.8
VCC=2V, IOL=20μA
VCC=4.5V, IOL=20μA
VCC=6V, IOL=20μA
VCC=4.5V, IOL =6mA
VCC=6V, IOL =7.8mA
0.002
0.001
0.001
0.17
0.1
0.1
0.1
0.26
0.26
±100
±0.5
8
VOL
V
0.15
Input Leakage Current
Output Leakage Current
Quiescent Supply Current
Input Capacitance
II(LEAK) VCC=6V, VIN=VCC or GND
IO(LEAK) VCC=6V, VOUT=VCC or GND
±0.1
nA
uA
μA
pF
±0.01
IQ
VCC=6V,VIN=VCC or GND, IOUT=0
VCC=2V~6V
CIN
3
10
VCC=2V, CL=50 pF
VCC=2V, CL=150 pF
VCC=4.5V, CL=50 pF
VCC=4.5V, CL=150 pF
VCC=6V, CL=50 pF
VCC=6V, CL=150 pF
35
60
10
15
8
100
150
20
Propagation delay from
input (A) to output(Y)
t
PLH/ tPHL
ns
30
17
13
26
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U74HC540
CMOS IC
SWITCHING CHARACTERISTICS (tR, tF≤3ns)
PARAMETER
SYMBOL
TEST CONDITIONS
VCC=2V, CL=50 pF
MIN
TYP
75
MAX
150
200
30
UNIT
ns
VCC=2V, CL=150 pF
VCC=4.5V, CL=50 pF
VCC=4.5V, CL=150 pF
VCC=6V, CL=50 pF
VCC=6V, CL=150 pF
VCC=2V, CL=50 pF
VCC=4.5V, CL=50 pF
100
15
3-state output enable time
from OE to Yn
tPZH/ tPZL
20
40
13
26
17
34
40
150
30
3-state output disable time
from OE to Yn
tPHZ/ tPLZ
ns
18
VCC=6V, CL=50 pF
17
26
OPERATING CHARACTERISTICS
PARAMETER
Power Dissipation Capacitance
SYMBOL
Cpd
TEST CONDITIONS
No load, f=1MHz
MIN
TYP
35
MAX
UNIT
pF
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U74HC540
CMOS IC
TEST CIRCUIT AND WAVEFORMS
Note: CL includes probe and jig capacitance.
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all UTC products described or contained herein.
UTC products are not designed for use in life support appliances, devices or systems where malfunction
of these products can be reasonably expected to result in personal injury. Reproduction in whole or in
part is prohibited without the prior written consent of the copyright owner. UTC reserves the right to
make changes to information published in this document, including without limitation specifications and
product descriptions, at any time and without notice. This document supersedes and replaces all
information supplied prior to the publication hereof.
UNISONIC TECHNOLOGIES CO., LTD
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